£40 Find Cheap Flights from Ireland to Brussels

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Brussels departing on 15/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Brussels, as well as popular online travel agencies
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Cheap Flights from Ireland to Brussels

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Brussels that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to Brussels

Tue, 15 Jul - Tue, 22 Jul
Ryanair Logo
06:45 - 09:25DUB-BRU
1h 40mdirect
Ryanair Logo
22:20 - 23:00BRU-DUB
1h 40mdirect
£40Ryanair
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Sat, 27 Sep - Wed, 1 Oct
Ryanair Logo
06:35 - 09:15DUB-BRU
1h 40mdirect
Ryanair Logo
21:30 - 22:10BRU-DUB
1h 40mdirect
£43Ryanair
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Fri, 31 Oct - Mon, 3 Nov
 Logo
06:20 - 09:05DUB-BRU
1h 45mdirect
 Logo
14:00 - 12:05BRU-DUB
23h 05m1 stop
Thu, 7 Aug - Mon, 11 Aug
 Logo
20:45 - 07:30DUB-BRU
9h 45m1 stop
 Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
Fri, 7 Nov - Sun, 9 Nov
Scandinavian Airlines Logo
10:45 - 20:55DUB-BRU
9h 10m1 stop
Scandinavian Airlines Logo
19:45 - 10:45BRU-DUB
16h 00m1 stop
£127Scandinavian Airlines
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Thu, 6 Nov - Sun, 9 Nov
Scandinavian Airlines Logo
11:30 - 18:40DUB-BRU
6h 10m1 stop
Scandinavian Airlines Logo
19:45 - 10:45BRU-DUB
16h 00m1 stop
£130Scandinavian Airlines
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Tue, 7 Oct - Thu, 9 Oct
Lufthansa Logo
10:40 - 10:20DUB-BRU
22h 40m1 stop
Lufthansa Logo
09:30 - 22:15BRU-DUB
13h 45m1 stop
£148Lufthansa
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Sun, 28 Sep - Thu, 9 Oct
Lufthansa Logo
05:55 - 12:45DUB-BRU
5h 50m1 stop
Lufthansa Logo
09:35 - 16:55BRU-DUB
8h 20m1 stop
£155Lufthansa
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Fri, 7 Nov - Sun, 9 Nov
SWISS Logo
13:20 - 18:50DUB-BRU
4h 30m1 stop
SWISS Logo
07:20 - 17:45BRU-DUB
11h 25m2 stops
£186SWISS
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Fri, 7 Nov - Sun, 9 Nov
SWISS Logo
13:20 - 22:30DUB-BRU
8h 10m2 stops
SWISS Logo
07:20 - 17:45BRU-DUB
11h 25m2 stops
£215SWISS
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KAYAK's insights & trends for flights to Brussels

Get data-powered insights and trends into flights to Brussels to help you find the cheapest flights, the best time to fly and much more.

What is a good deal for flights to Brussels?

If you’re looking for cheap airfare to Brussels, 25% of our users found tickets to Brussels for the following prices or less: From Dublin £50 return.

How far in advance should I book a flight to Brussels?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Brussels, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Which is the cheapest airport to fly into in Brussels?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Brussels is Ostende-Bruges Airport (OST), with an average flight price of £51.

Good to know - Cheap tickets from Ireland to Brussels

Cheapest flight£21
Flight from Dublin to Brussels

FAQs - booking Brussels flights

  • Which Brussels airport is closest to central Brussels?

    Brussels is served by 2 major airports. Brussels Airport (7 miles) is the closest to the centre of Brussels and Charleroi Brussels is 27 miles from the centre.

  • How much is a flight to Brussels?

    On average, a flight to Brussels costs £57. The cheapest price found on KAYAK in the last 2 weeks cost £20 and departed from Dublin Airport.

  • What is the cheapest day to fly to Brussels?

    Based on KAYAK data, the cheapest day to fly to Brussels is Sunday where round-trip tickets can be as cheap as £57. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are £128 on average.

  • How does KAYAK find such low prices on flights to Brussels?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Brussels.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Brussels?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Brussels?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Brussels?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Brussels?

    The cheapest time of day to fly to Brussels is generally in the evening, when round-trip flights cost £89 on average. The most expensive time of day to fly to Brussels is generally in the morning, which is peak travel time and where the average cost of a ticket is £108.

  • How many direct flights to Brussels are there each week?

    Each week there are around 105 direct flights from within Ireland to Brussels. The most common day for departures is Wednesday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Brussels

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Brussels flight deals.

Top airlines flying from Ireland to Brussels

 
See real verified KAYAK customer reviews for airlines flying to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Brussels. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Brussels? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Aer LingusOverall score based on 1117 reviews
6.8Entertainment
7.2Boarding
6.4Food
7.9Crew
7.0Comfort
Airline reviews

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

10.0 ExcellentAnonymous, Jun 2025MAN - MCO
Read more Aer Lingus reviews

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Cabin crew couldn’t be less interested. Cabin manager was the most arrogant and the rudest I’ve encountered in many years.

Flight got delayed and they didn’t keep us informed all the time.

The worst flight ever. Sitting in plane for 4 hours delay and then they change crew. No water or food offered to any passengers including children in that time. Only 2 toilets out of 3 operating for flight with 200 passengers. Only enough food available for about 7 rows of seats depending where you sat you might be lucky. Cabin crew very unfriendly.

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

Awful as usual the air stewardess loved her own voice and would not stop talking on coms for 2hrs please please please shut up I can’t hear my headphones and don’t want to buy juty free

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

Their customer service needs an overhaul. I wish we could access them and the could be more helpful. Also, the website has been crashing and I had numerous technical errors. My flight was cancelled and we spent so much time trying to get help because the tech was failing.

The punctuality of f the flight was super: we left on time and arrived about 20 minutes early - and the cabin crew were both friendly and efficient. The only downside was that Ryanair appears to have resumes its old obsession with sizing cabin bags again after a long and welcome absence.

Everything you need to know for your flight to Brussels

Cabin class types available on flights to Brussels

Cabin classes available on flights to Brussels. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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